Move bones while animation

[ParaToxic]

Hey ya, I would like to ask if it is possible to rotate a bone of a animated mesh white the animation.

I have positioned and rotated my camera to the Head bone of a character and wants to rotate it while the running/idle animation ... but I doesn't work, I can only do that when the character isn't animated ( so without the Animate() function ).

 

Can somebody help me ?

Thanks

[Furbolg]

Hi Guys, dont know if it works but have you tried to animate() and then move the headbone ?

[ParaToxic]

Well it doesn't work I deleted all rotation keys for the head bone but I still can't rotate it

[Rick]

I'm with Furblog, you have to get the head bone entity, animate the model as normal, and then move the head bone with your own logic. I did something like this a few years ago and it works.

[ParaToxic]

Look at my code:

[/size]
TEntity mesh = LoadMesh("abstract::mesh.gmf");

..... Update
Animate(mesh,AppTime()/40.0,1.0,0);
TurnEntity(FindChild(mesh,"Bip_Head"),Vec3(1,0,0));

 

It doesn't work for me :/

[Rick]

The first thing I would do is make sure FindChild is getting the right bone. Just make a small example program where you aren't animating the entire thing, and just mess around with that bone to make sure you visually see the results.

 

Also, I think there is a tutorial about this. The animating one.

[Rick]

http://www.leadwerks.com/werkspace/page/Documentation/le2/_/tutorials/introduction-to-animation-r474

 

Look around the middle of this tutorial and Josh does what you are trying to do.

[ParaToxic]

Thanks for the answer.I mean it isn't the problem of the child.When I get the child and move it around without the Animate function everything works fine but with the Animate function it doesn't effect anything..

[ParaToxic]

Look at that.I tried with the soldier mesh and the animation sequences:

#include "engine.h"
#include <iostream>
#include <string>
const int  ScreenWidth = 800;
const int  ScreenHeight = 600;
const char* MediaDir =  "D:/Leadwerks Engine SDK 2.5 V2";
const char* AppTitle = "Anim";
void ErrOut( const std::string& message ) { std::cerr << message << std::endl; }
// -------------------------------
int main( int argn, char* argv[] )
{
// Initialize
if( !Initialize() )
 return 1;	   
SetAppTitle( AppTitle ) ;
RegisterAbstractPath( MediaDir );

// Set graphics mode	   
if( !Graphics(ScreenWidth,ScreenHeight) )
{			   
 ErrOut( "Failed to set graphics mode."  );
 return 1;	   
}

// Create framework object and set it to a global object so other scripts can access it
TFramework fw = CreateFramework();	   
if( fw == NULL )	   
{
 ErrOut( "Failed to initialize engine." );			   
 return 1;	   
}	   

// Set Lua framework object	   
SetGlobalObject( "fw", fw );			   

// Set Lua framework variable	   
BP lua = GetLuaState();	   
lua_pushobject( lua, fw );	   
lua_setglobal( lua, "fw" );	   
lua_pop( lua, 1 );	   

// Get framework main camera	   
TCamera camera = GetLayerCamera( GetFrameworkLayer(0) );	   
PositionEntity( camera, Vec3(0,2,-2) );	   

// Create cube
TMaterial material = LoadMaterial( "abstract::cobblestones.mat" );	   

TEntity mesh = LoadMesh("abstract::soldier.gmf");
int seq = LoadAnimation(mesh,"abstract::animidle.gmf");
TEntity child = FindChild(mesh,"Bip01 Head");
SetBloom(1);
SetHDR(1);
SetSSAO(1);
// Create ground
TMesh ground = CreateCube();	   
ScaleEntity( ground, Vec3(10,1,10) );	   
PositionEntity( ground, Vec3(0,-2,0) );	   
PaintEntity( ground, material );	   

// Add some light
TLight light = CreateDirectionalLight();	   
RotateEntity( light, Vec3(45,45,45) );	   

// Spin cube until user hits Escape
while( !KeyHit() && !AppTerminate() )	   
{			   
 if( !AppSuspended() )
 {

  Animate(mesh,AppTime()/70.0,1.0,seq);
  if(KeyDown(KEY_UP)) TurnEntity(child,Vec3(1,0,0));
  UpdateFramework();			   
  RenderFramework();			

  Flip( 0 );	   
 }
}			   

return Terminate();
}

[Furbolg]

The Animate() then Child thing works for me

 

[ParaToxic]

The same code ? Can you send me your project?

[Furbolg]

Im sorry, i can't send you my project because it has some unnecessary stuff for your problem in it (gamestate, world, some prototype ai management etc).

 

I did the following (pseudo code)

// Loading
LEO::Mesh* dragon = new LEO::Mesh("abstract::dragon.gmf"); // its from 3d foin
LEO::Entity* dragonhead = new LEO::Entity(dragon->findChild("Bip01_Head"));

// Update
dragon->Animate(frame, 1, 0);
dragonhead->SetRotation(Vec3(0, -90, 0));

 

I dont use LoadAnimation, maybe it causes problems ?

[ParaToxic]

Thanks I git it now Well the TurnEntity function doesn't work here, the result is the same as with 'RotateEntity, so the TurnEntity(...Vec3(1,0,0)) causes only a 1 degrees rotation and not 1 degrees per frame.

When I call first the animate function an then the rotateentity function it works well....so thanks

[Furbolg]

Yea,TurnEntity dont work here. Animate seems to calculate local matrices new every time.